Cranial - toward the head Caudal - toward the rear Dorsal - toward the spinal cord (back) Ventral - toward the body Medial - toward the middle Distal - away from External features: - pair of openings (nostrils) on each side of the head. Water is taken into the smaller of the two openings and expelled through the larger opening. These are small openings, which allow water to pass through the gills even when the shark’s mouth is closed (located caudal from the eyes). - adaptation for eating, but also used for the intake of water that passes through the gills. - 5 vertical slits which allow water to exit after passing over the gills (located caudally from the mouth). - a pale line that extends from the pectoral fin past the pelvic fin. The line is actually a group of small pores which open into the underlying sensory organ that detects water movement. - found between the pelvic fins, this opening is part of the digestive system and urogenital system. - found only on male sharks. Finger-like extensions on the edge of each pelvic fin. - Look at the figure and the location and name of each fin. - pointed snout at the cranial end of the head. - cranial to each dorsal fin. A spine that is used defensively by the shark.

hey bro i looked it up on google the structure of the eye-spot in euglena viridie, e. ehrenbergii, and phacus pyriyorme is not as franzé haa described it. the so-called “crystal body” and “lens bodies” were not found in any of the individuals of the species examined by me. as earlier observers have stated, the eye-spot consists simply of a mass of pigment granules arranged in a single layer, and probably embedded in a protoplasmic framework, but the latter could not be seen, and its presence was only inferred from the fact that the pigment granules must be held together in some way, thd the eye-spot as a whole is capable of expansion, and that the pigment granules can be separated from each other.

hope this   and an i get brainlsiest

photosynthesis makes the glucose that is used in cellular respiration to make atp. the glucose is then turned back into carbon dioxide, which is used in photosynthesis. while water is broken down to form oxygen during photosynthesis, in cellular respiration oxygen is combined with hydrogen to form water.

homeostasis is the tendency towards a relatively stable equilibrium between interdependent elements, especially as maintained by physiological processes. and this is how it applies to the integumentary system. back to top. skin functions in homeostasis include protection, regulation of body temperature, sensory reception, water balance, synthesis of vitamins and hormones, and absorption of materials. when body temperature falls, the sweat glands constrict and sweat production decreases.